baber/WOPTO huggingface dataset:
Patent GB-1336671-A (GB)
Title: Process for the preparation of photographic materials
IPC: G03C1/496
Filed: 1971-04-19
Abstract: 1336671 Electro-depositing photographic material EASTMAN KODAK CO 19 April 1971 [19 March 1970] 24558/71 Heading C7B [Also in Divisions B2 and G2] A photographic material is prepared by predispersing a radiation-sensitive silver salt or silver-sensitizing dye complex crystals in a hydrophilic colloid, optionally removing the colloid from the crystals, dispersing the predispersed crystals and colloid (when present) in a dielectric fluid medium and contacting the thus formed dispersion with an electrically insulating support or supported layer bearing an electrostatic charge of polarity opposite to that of the dispersed crystals so that the crystals and colloid (when present) are deposited on the support or layer. The crystals may be dispersed in a liquid or gas (e g. as an aerosol formed by spraying or fluidized bed). The Examples describe coating polyethylene coated paper with either (A) silver halide crystals or emulsions in cyclohexane which may contain cobalt napherate or sorbitan monoleate. or (B) an aerosol of a gelatine/copoly (3-thiapentylacrylate/3- acryloxypropane-1-SO 3  Na) silver halide emulsion in cyclohexane containing sorbitan mono-oleate.
Patent GB-534154-A (GB)
Title: Improvements in or relating to cathodes for electron discharge devices
IPC: H01J1/14
Filed: 1939-08-26
Abstract: 534,154. Refining nickel ; alloys. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 26, 1939, No. 24573. Convention date, Aug. 27, 1938. [Class 82 (i)] An oxide-coated cathode for electric discharge devices has a core consisting of nickel containing 0.02-0.05 per cent. of carbon, and free from other reducing agents, with or without less than 0.075 per cent. of iron and traces of silicon, copper, and magnesium. The nickel may contain up to 0.8 per cent. of cobalt. The material may be made by melting pure nickel, adding carbon, for example, 0.5 per cent. rolling, and annealing. The carbon may be added in admixture with powdered nickel ,and a binder. U.S.A. Specification 2,029,482 is referred to.
Patent GB-907788-A (GB)
Title: Improvements in or relating to the manufacture of solid bodies by heating compacted powdered refractory substances
IPC: B22F3/10
Filed: 1959-07-17
Abstract: Sintered bodies of metallic or refractory materials are formed by compacting the powder materials and sintering the compact by immersing it in molten glass which has a lower melting-point than some of the constituents of the powder.  The process is exemplified by the sintering of Fe powder which is compacted and then immersed in a molten bath of glass at 1200 DEG  C./1250 DEG  C. until sintering is complete.  The compacts may be presintered prior to sintering and the degree of penetration of the glass is regulated by controlling the powder grain size, the pressure of compaction and the oxidation of the powder particles.  Thus by oxidizing the ferrous powder compact at 500 DEG  C.-600 DEG  C. in steam the compact is completely impregnated with the glass after sintering.  After sintering the compact may be cooled in a protective atmosphere such as argon or quenched in oil or water.  The sintering may also be effected by enclosing the compact in a sheath of metal or glass and if contact with the molten bath is to be avoided the sheath should have a melting temperature higher than the sintering temperature of the powder.  Other examples of materials which are sintered in this way are "Alcomax" (Registered Trade Mark), stainless steel, and low alloy Ni steels.  In addition C and Al2O3 may be added as powder to the Fe powder to give the required properties.ALSO:Sintered bodies of metallic or refractory materials are formed by compacting the powder materials and sintering the compact by immersing it in molten glass which has a lower melting point than some of the constituents of the powder.  The process is exemplified by the sintering of Fe powder which may be mixed with graphite or alumina, which is compacted and then immersed in a molten bath of glass at 1200 DEG C/1250 DEG C until sintering is complete. The compacts may be presintered prior to sintering and the degree of penetration of the glass is regulated by controlling the powder grain size, the pressure of compaction and the oxidation of the powder particles.  Thus by oxidising the ferrous powder compact at 500 DEG C-600 DEG C in steam the compact is completely impregnated with the glass after sintering.  After sintering the compact may be cooled in a protective atmosphere such as argon or quenched in oil or water.  The sintering may also be effected by enclosing the compact in a sheath of metal or glass and if contact with the molten bath is to be avoided the sheath should have a melting temperature higher than the sintering temperature of the powder. Other examples of materials which are sintered in this way are "Alcomax" (Registered Trade Mark) stainless steel and low alloy Ni steels.  In addition C and Al2O3 may be added as powder to the Fe powder to give the required properties.
Patent GB-738540-A (GB)
Title: Tobacco cleaner and classifier
Inventor: ROWELL LORNE ARCHIBALD
IPC: A24B5/10
Filed: 1953-09-08
Abstract: 738,540. Pneumatic separating. IMPERIAL TOBACCO CO. OF CANADA, Ltd. Sept. 8, 1953, No. 24845/53. Class 117. Relates to a pneumatic tobacco cleaning and classifying machine similar to that described in Specification 708,577 and in which pneumatic conveying means are provided for the material falling to the bottom of the vertical feed passage at the side of the classifying chambers. The material is fed from an opening 6 into the vertical passage 7 and drops past the lower ends of inclined chambers 8 . . . 11, each of which is associated with a pair of air nozzles 36, 37 . . . 42, 43 which blow across the stream of material and convey the lighter fractions through the chambers into a collecting chamber 18. The lower jet of each pair of nozzles is directed against a curved portion 16a of the lower wail of each chamber to direct material falling out of a chamber upward. The material carried into the chamber 18 is collected in a hopper 21, with an outlet 22 forming part of a pneumatic conveying system. Air entering the chamber 18 flows through a rotary screen 20, the interior of which is connected through a pipe 30 to the intake of a fan 31, the outlet 34 of which supplies air under pressure to a tank 15 feeding the air nozzles. Material is removed from the screen 20 by a spring-loaded brush 26. The material passing beyond the lower end of chamber 7 drops into a hopper 44 and an air passage 46, fed from the fan outlet 34, provides air to deliver the material up an inclined con veying conduit 45 to a second rotary-screen separator 52. The air passing to the interior of this screen is returned to pipe 30 through a branch pipe 56, while the conveyed material is discharged through a rotating air-lock 49. Adjustable dampers 57, 58 are provided in the pipes 30, 56 respectively and an inclined damper 62, which may be rotated or warped about its bottom edge by two screws 63, is situated in the pressure tank 15 so that the air velocities in the jets 37 . . . 43 may be substantially equalized. The apparatus is enclosed by a casing 5 and the suction conduit 22 maintains a slightly negative pressure therein, the air in the casing being changed due to entry through the inlet 6, and leakage points at inspection windows 66 and elsewhere. The streamlined construction of the entries to the nozzles 37 . . . 43 and means for adjusting their openings are described in detail, Figs. 5, 6 (not shown).
Patent GB-993013-A (GB)
Title: Improvements in or relating to implements for spreading material over the ground
IPC: A01C15/00
Filed: 1961-07-10
Abstract: 993,013. Fertilizer distributers. PATENT CONCERN N.V. July 10, 1961 [July 27, 1960], No. 24886/61. Heading A1D. A powder distributer is provided with a distributing disc 40 which rotates at an angle to the horizontal and eccentrically attached to the disc shaft 30 is an agitator 90 which rotates in the vertically situated hopper 2 so that it moves in both horizontal and vertical directions. The disc 40 is driven by the tractor power shaft through universal joints 50, 64. A housing 16 is fitted to the bottom of the hopper and is provided with lateral openings 115, 118 and is surrounded by a cylindrical part 43 of a control member 44 which is provided with co-operating openings. The member 44 is provided with holes in any one of which a member 101 is inserted and is connected to a lever 103 to adjust the position of member 44. Specifications 993,012, 993,014, 993,015 and 993,016 are referred to.
Patent GB-1212525-A (GB)
Title: Improvements in heating apparatus
Inventor: SMITH JOHN ALFRED
IPC: A21B1/02
Filed: 1967-05-30
Abstract: 1,212,525. Baker's ovens. BAKER PERKINS Ltd. 21 May, 1968 [30 May, 1967], No. 24903/67. Heading A2A. In a baker's oven or similar heating apparatus having a heating chamber 1 containing a support 2, e.g. a moving conveying band, for goods to be heated and in which the air or other gas is heated by radiant heating means in the form of tubes 3 through which hot gas is passed from an external source, the hot gas within the chamber is withdrawn by a fan 3 and passed to re-circulation tubes 6 having orifices 7 positioned opposite the spaces between the tubes 3, the arrangement being such that the jets of gas issuing from the orifices 7 are directed towards the support 2 between the tubes 3 in such manner that they cause a further flow of gas from within the chamber around tubes 3 and towards the support 2 by venturi action.
Patent GB-462535-A (GB)
Title: Manufacture of azo-dyestuffs insoluble in water
IPC: C09B29/20
Filed: 1935-09-07
Abstract: Azo dyes insoluble in water are made in substance, on the fibre or on a substratum by coupling the diazo-compound of a 1 : 2-substituted 3-aminoindole with an o-hydroxyaryl carboxylic acid arylide.  The dyeings are fast to washing, peroxide and soaping and yield with acid printing pastes coloured and white resist effects.  According to examples: (1) cotton yarn is grounded in the usual manner with 2<1> : 3<1> - hydroxynaphthoyl - 1 - amino - 3 - methyl-4-methoxybenzene and developed with diazotized 1 - methyl - 2 - phenyl - 3 - aminoindole (brown); white resist effects may be obtained on piece-goods by padding with the grounding solution on a foulard, drying, printing with pastes containing acid salts or acids, drying and treating with the diazo solution; if the pastes contain diazo compounds, coloured resist effects are obtained; (2) the above dyestuff is prepared in substance or on a substratum forming a brown lake. The following additional components are specified in a table: diazo components; 1 : 5 - dimethyl - 2 - phenyl - 3 - amino - indole, 1 - isobutyl - 2 - p - chlorphenyl - 3 - amino-4 : 6 - dimethylindole, 1 : 4 : 6 - trimethyl - 2 - p - chlorphenyl-3-aminoindole, 1-ethyl-2-phenyl-3-amino-4 : 5-benzindole, 1-methyl-2-m-xylyl-3-aminoindole; coupling components; the 2<1> : 3<1>-oxynaphthoyl derivatives of 1-amino-2 : 4-dimethoxy-5-chlorobenzene, p-anisidine, p-chloraniline, 1 - amino - 2 - methyl - 4 - chlorobenzene, 1-amino-2-methyl-4-methoxybenzene, a - and b -naphthylamine, dianisidine and o-toluidine, 2<1> : 3<1>-hydroxyanthracene carboxylic acid-o-toluidide.  Specifications 218,568, [Class 2 (iii)], and 367,907 are referred to.  The Provisional Specification refers also to the use of arylides of b -ketocarboxylic acids and specifies bis-(acetoacetic)-tolidide. 3-Aminoindoles of the above type are made by treating the corresponding 1 : 2-substituted indoles with nitrous acid and reducing the 3-nitrosoindoles.
Patent GB-1428055-A (GB)
Title: Acceleration switch for an impact fuse
IPC: F42C19/06
Filed: 1974-06-05
Abstract: 1428055 Toggles MESSERSCHMITTBOLKOW-BLOHM GmbH 5 June 1974 [28 June 1973] 25005/74 Heading F2K [Also in Division F3] A projectile fuze comprises a ball 31 which, on impact of the projectile against a target, operates an over centre toggle 33, 38 to withdraw a diaphragm 41 from a position in which it interrupts a light beam forming a link in a detonating circuit. Accidental withdrawal of the diaphragm is prevented by a leaf spring 13 which is removed from the path of the diaphragm when a potential is applied across pins 7 and 8 to melt an element 12 restraining the spring.
Patent GB-1383542-A (GB)
Title: Artificial antenna
IPC: H03H7/38
Filed: 1972-05-26
Abstract: 1383542 Loading network PATELHOLD PATENTVERWERTUNGS & ELEKTROHOLDING AG 26 May 1972 [28 May 1971] 25011/72 Heading H3U [Also in Division H1] A load resistance for transmitter testing comprises a copper alloy band following a serpentine path between cylindrical or tubular insulators 2 in a plurality of planes with cross over sections 4a, 4b, plate 9, which may be the housing 1 if the latter is metal, dielectric 10 and plates 11 forming capacitative coupling between the band 4 and metal bracket 8 connected to one end of the band, bracket 8 forming an earth terminal for the resistance. Alternatively the capacitative coupling may be provided by means of metal linings (22), Fig. 4 (not shown), of tubular insulators (21), the linings being connected to end 7 of the band, the thickness of the insulator (21) being chosen for desired coupling, and/or metal plates (13), Fig. 5 (not shown), projecting into the loops of the band, and coupled to end 7 via the metal housing. Design of the resistance is discussed. Flanges 3 allow for the attachment of a blower.
Patent GB-906382-A (GB)
Title: Improvements in tunnel type broaching machines
Inventor: POYNTER CYRIL EDWARD
IPC: B23D37/00
Filed: 1960-07-18
Abstract: 906,382. Broaching. WEATHERLEY OILGEAR Ltd. July 14, 1961 [July 18, 1960], No. 25018/60. Class 83 (3). A tunnel-type broaching machine comprises two sets of tools 9, 10 and a reciprocating slide 6 carrying two longitudinally-spaced work-holding tables 7, 8. The teeth of the broaches may face in either direction so that there may be only one loading station, at the centre of the machine as in Fig. 1, or two loading stations, one at one side and the other at the centre as in Fig. 3. In the latter case both work-holders are returned on a common idle stroke. A swarf outlet shoot and conveyer are provided. The broach holders may be swung aside to provide access. The slide is reciprocated hydraulically. Alternatively, the reciprocation and the loading and unloading of workpieces are all controlled automatically by electrical or other means.
Patent GB-696376-A (GB)
Title: Improvements in or relating to methods and apparatus for testing ferromagnetic materials
Inventor: DARNTON DEREK JEWELL
IPC: G01N27/80
Filed: 1950-10-13
Abstract: 696,376. Testing ferromagnetic materials for flaws. PARSONS' CHAIN CO., Ltd. Oct. 12, 1951 [Oct. 13, 1950; April 4, 1951], No. 25058/50 and 7859/51. Class 37. An apparatus for testing a body of ferromagnetic material comprises a first and a second magnetic circuit of each of which the body or a portion thereof forms part, a portion of the body being included in each magnetic circuit; an exciting device producing an alternating magnetic field along and threading the material of each portion of the body included in each circuit, and at least one pick-up coil magnetically associated with the second magnetic circuit so as to be responsive to field intensity changes in that portion of the body included in the second magnetic circuit, together with an indicator actuated by the electrical output of the coil in response to the differential permeability or susceptibility of the material of the body included in the second magnetic circuit. A bipolar magnetizing head 1 energized from an A.C. source 3 through a voltage stabilizer 4, an adjustable transformer 5 and a series resistance 6 magnetizes sinusoidally and equally the welded and unwelded limbs of the links of a chain passing through the apparatus across and between the poles of the magnetizing head and those of a magnetic pick-up comprising four windings 11, wound as opposed bipolar coils on cores bestriding short lengths of the limbs of each passing link. The coils are connected in two series opposed pairs, which are connected in parallel through balancing potentiometers 12, 13, 14 across the input of an adjustable phase shifter 14a whose output excites the Y plates of a cathode-ray oscillograph 10 through a peaking network 17 and amplifiers 15. The X-plates of the C.R.O. are excited through an adjustable phase shifter 7 and an amplifier 8 by the excitation voltage drop across resistance 6, and the trace may be suppressed during alternate half-cycles by a grid bias derived from the X deflection voltage through an amplifier 21. Excitation harmonics are reduced by feed-back from the output of phase shifter 14 to a potentiometer 20 across the magnetizing head excitation through a harmonic suppression network 18. The outputs of the two sides of the magnetic pick-up are respectively dependent on the differential magnetic permeabilities or susceptibilities of the limbs of each passing link so that the C.R.O. is undeflected when the welded limb of a link magnetically balances the unwelded limb, i.e. when the weld is perfect, but is deflected by a faulty weld to an extent dependent on the imperfection. Contacts within the C.R.O. receiving the deflected beam may operate alarm or control circuits in response to the occurrence of a faulty weld. The apparatus is applicable to the continuous inspection of other ferromagnetic articles against a standard, e.g. connecting-rods, ball and roller bearings, and their races. Dial indicating and recording instruments may be used.
Patent GB-1352168-A (GB)
Title: Construction unit for toys and buildings
IPC: E04C2/38
Filed: 1971-04-19
Abstract: 1352168 Toy building units ANSCHUETZHANDELS-UND VERWALTUNGS GmbH 19 April 1971 [7 March 1970] 25058/71 Heading A6S [Also in Division El] A toy &c. building unit has a peripheral frame and at least two parallel rows of alternating plugs 11, 24 and sockets 14, 21 thereon, the plugs of one row being adjacent the sockets of the other row and vice versa and an open side of the frame can be covered by a plate having lugs for engaging the inner edges of the frames. The plates may be plane or have rows of plugs and sockets. The frame may be square, rectangular or triangular, may have some plane sides and may be of an inelastic synthetic material (for toys) or of a mineral material bonded by a foamed plastics (for full size units). Recesses may be provided in the frame to facilitate removal of the cover plates.
Patent GB-671322-A (GB)
Title: Improvements in or relating to carburettors
IPC: F02M3/14
Filed: 1947-09-12
Abstract: 671,322. Regulating; spray carburetters. SMITH. B. Sept. 9, 1948 [Sept. 12, 1947], No. 25114/47. Classes 7(iii) and 7(vi) An imperforate vane 5 of segmental shape is spaced from but attached to the carburetter side of a throttle valve 2. In the embodiment shown the vane is attached by two screws or studs 6. The vane has the effect of a choke at small throttle openings and so reduces flat spots when the engine is picking up from slow speeds. There may be an additional vane on the engine side of the throttle valve; the throttle and vane may be integral with one another.
Patent GB-252539-A (GB)
Abstract: 252,539. Withers, J. S., (Bristol Stove & Foundry Co.). May 25,1925. Cooking-ranges; boilers, arrangement of.-In a cooking-range comprising a firebox 16, an oven 14 on one side thereof, a chamber 13 extending round the. oven and communicating with the fire. box and a smoke-flue 12 adapted to communicate with the firebox and with upper and lower portions 15, 13 of the chamber, means are provided such as a pipe 21 for circulating water from a reservoir 18 through the smoke flue 10 between the connections with the upper and lower flues 15, 13 and means 11 to direct all the products of combustion to the bottom of the oven and thereafter to the water heater.
Patent GB-310261-A (GB)
Title: Improvements in or relating to machines for casting metals
IPC: B22D17/12
Filed: 1928-09-03
Abstract: 310,261. Polßk, J. Sept. 3, 1928. Pumps for molten materials; valves and valve seats, arrangements of.-A casting-machine, in which mould d can be applied to openings m in the wall of a cylinder a filled with molten metal and having one piston b to force the metal into the moulds and another c to cover or uncover the openings, is arranged so that the piston b can be withdrawn, as shown, to allow molten metal to be poured into the cylinder a. The piston b is operated by a fluid pressure cylinder k and the piston c, is depressed against the action of a spring f by the pressure of the metal, thus exposing the openings m. When the piston b has been returned to its highest position the piston c can be raised by lever g to eject the residue. In a modification the piston c, Fig. 2, has parts c<1> cut away and is rotated by a lever r to cover or uncover the openings m and is lifted to eject the residue by a crosshead i engaging a member o on the rod s of the piston c. The member o is shaped to pass freely through a hole t of the .crosshead i when the piston c closes the openings m. The bottom of the piston b may be shaped to correspond to the face of the bottom c in the open position. In both forms the molten metal cools to form a solid outer layer while in the cylinder a so that the pressure of the piston b has to force the molten interior through this solid layer into the moulds.
Patent GB-255512-A (GB)
Abstract: 255,512. Edwards, A. April 15, 1925. Couplings and connectors. -- A flexible metal strip 1 has apertures 2 uniformly spaced along its length to facilitate connection to two or more separate and fixed terminals 3 at any distance apart without bending the strip. The apertures are elongated and the strip may be cut to leave the equivalent of a spade terminal at the end. A support for a cartridge form of resistance may be constructed of two lengths of strip having their ends bent at right-angles. In the place of apertures, notches may be formed in the edges of the strip.
Patent GB-507130-A (GB)
Title: Improvements in or relating to containers and the production thereof
IPC: B65D35/14
Filed: 1938-09-02
Abstract: 507,130. Resinous compositions. DEHN, F. B. (Hafta Handelsges. f³r Technische Neuheiten) Sept. 2, 1938, No. 25770. Drawings to Specification. [Class 2 (iii)] [Also in Group XVIII] A composition for litiing collapsable tubes of cellulose derivative, 'which tubes are provided with dispensing terminals, e.g. of " Bakelite " (Registered Trade Mark), comprises a non- hardening artificial resin, e.g. polymerized vinyl ester or styrene, and a wax, e.g. beeswax.
Patent GB-1314444-A (GB)
Title: Composition and process for reducing static electrical charges on textile fibres
IPC: C08F20/06
Filed: 1970-05-28
Abstract: 1314444 Reducing static S C JOHNSON & SON Inc 28 May 1970 [3 June 1969] 25866/70 Heading DIP [Also in Divisions C3 and C4] The accumulation of static electrical charges on textile fibres is reduced by treating the fibres with a composition comprising an alkaline mixture of 3-20% by weight polymethacrylic acid having an aqueous solution viscosity, at 25‹C and 15% by weight solids, of not more than 650 cps and a vehicle therefor, the mixture having a pH of at least about 9 as a result of treatment of the acid with an alkali metal hydroxide or other sufficiently alkaline compound such as an alkali metal carbonate or bicarbonate. The vehicle is preferably aqueous and may contain an alkanol, e.g. ethanol. If desired, the composition can be packaged in aerosol form. The composition may optionally include additives such as surface active agents, brighteners, pigments or dyes (for application to carpets), and alumina or colloidal silica (anti-soiling agents). The treatment is particularly useful in application to carpets and the composition can be applied by dipping, sponging, soaking, sprinkling or spraying techniques. In Examples the treatment of acetate fabric and domestic (e.g. nylon) carpet is illustrated